10111202121123 has 8 divisors (see below), whose sum is σ = 14979558698000. Its totient is φ = 6740801414064.

The previous prime is 10111202121113. The next prime is 10111202121131. The reversal of 10111202121123 is 32112120211101.

It is a happy number.

It is not a de Polignac number, because 10111202121123 - 2¹⁰ = 10111202120099 is a prime.

It is a super-2 number, since 2×10111202121123² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10111202121096 and 10111202121105.

It is not an unprimeable number, because it can be changed into a prime (10111202121113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187244483698 + ... + 187244483751.

It is an arithmetic number, because the mean of its divisors is an integer number (1872444837250).

Almost surely, 2^{10111202121123} is an apocalyptic number.

10111202121123 is a deficient number, since it is larger than the sum of its proper divisors (4868356576877).

10111202121123 is an equidigital number, since it uses as much as digits as its factorization.

10111202121123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374488967458 (or 374488967452 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 10111202121123 its reverse (32112120211101), we get a palindrome (42223322332224).

The spelling of 10111202121123 in words is "ten trillion, one hundred eleven billion, two hundred two million, one hundred twenty-one thousand, one hundred twenty-three".